An optical waveguide feedthrough

摘要

An optical waveguide feedthrough comprising a flexible diaphragm having an outer rim portion and a central ledge portion; the outer rim portion being adapted to be sealed to an optical package; the central ledge portion comprising an aperture extending through the feedthrough; through for receiving the optical wave guide; wherein the ledge portion proximate to the aperture comprises at least one support face extending substantially parallel to the axis of the aperture and arranged to support the waveguide over an extended area;